Originally Posted by till
Off course as a website is a apache vhost and the files of the apache server are in /etc/apache2/ or /etc/httpd depending on your linux distribution.
Then add a wildcard subdomain in the dns manager.
Subdomain wildcard won't resolve my problem. I want my reseller to create subdomains of this domain but with separate vhosts and quotas.
When I was using cPanel as a reseller than the software created automaticaly both vhost config and proper DNS-zone update in one step.
Users don't know how to modify DNS records so I don't want them to do it.